PLC控制元件,如何开关背景灯

PLC控制元件,如何开关背景灯

通过PLC控制,可以打开或关闭背光灯,带返回值的是关屏以后LB10变量也复位了。

而不带返回值的,是需要手动复位或置位。

再新建一个位状态显示元件

再新建一个宏让其每3秒执行一次关屏,可以发现带返回值的也跟着复位了。

另一种方式:是添加系统变量LW9080节能时间,单位分钟。

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智能工控 » PLC控制元件,如何开关背景灯

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